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package com.mudalov.rec.web.tiles.teacher;

import com.mudalov.rec.dao.factory.DAOFactory;
import com.mudalov.rec.dao.interfaces.IMaterialDAO;
import com.mudalov.rec.dao.model.study.Material;
import com.mudalov.rec.dao.model.user.Teacher;
import com.mudalov.rec.util.StringUtil;
import com.mudalov.rec.util.webui.MessagesHelper;
import com.mudalov.rec.util.webui.ResourcesHelper;
import com.mudalov.rec.web.FileUploadBean;
import com.mudalov.rec.web.SessionBean1;
import com.sun.rave.web.ui.appbase.AbstractFragmentBean;
import com.sun.webui.jsf.component.PageAlert;
import com.sun.webui.jsf.model.UploadedFile;
import java.io.File;
import javax.faces.FacesException;

/**
 * <p>Fragment bean that corresponds to a similarly named JSP page
 * fragment.  This class contains component definitions (and initialization
 * code) for all components that you have defined on this fragment, as well as
 * lifecycle methods and event handlers where you may add behavior
 * to respond to incoming events.</p>
 *
 * @version UploadMaterialFragment.java
 * @version Created on 13.12.2008, 16:37:18
 * @author MU
 */

public class UploadMaterialFragment extends AbstractFragmentBean {
    // <editor-fold defaultstate="collapsed" desc="Managed Component Definition">

    /**
     * <p>Automatically managed component initialization. <strong>WARNING:</strong>
     * This method is automatically generated, so any user-specified code inserted
     * here is subject to being replaced.</p>
     */
    private void _init() throws Exception {
    }
    // </editor-fold>

    public UploadMaterialFragment() {
    }

    /**
     * <p>Callback method that is called whenever a page containing
     * this page fragment is navigated to, either directly via a URL,
     * or indirectly via page navigation.  Override this method to acquire
     * resources that will be needed for event handlers and lifecycle methods.</p>
     * 
     * <p>The default implementation does nothing.</p>
     */
    @Override
    public void init() {
        // Perform initializations inherited from our superclass
        super.init();
        // Perform application initialization that must complete
        // *before* managed components are initialized
        // TODO - add your own initialiation code here
        
        
        // <editor-fold defaultstate="collapsed" desc="Visual-Web-managed Component Initialization">
        // Initialize automatically managed components
        // *Note* - this logic should NOT be modified
        try {
            _init();
        } catch (Exception e) {
            log("Page1 Initialization Failure", e);
            throw e instanceof FacesException ? (FacesException) e: new FacesException(e);
        }
        
        // </editor-fold>
        // Perform application initialization that must complete
        // *after* managed components are initialized
        // TODO - add your own initialization code here
        factory = DAOFactory.getFactory(getSessionBean1().getDaoFactoryClass());
        getPageAlert().setVisible(false);
    }

    /**
     * <p>Callback method that is called after rendering is completed for
     * this request, if <code>init()</code> was called.  Override this
     * method to release resources acquired in the <code>init()</code>
     * resources that will be needed for event handlers and lifecycle methods.</p>
     * 
     * <p>The default implementation does nothing.</p>
     */
    @Override
    public void destroy() {
    }

    private String materialName;

    public String getMaterialName() {
        return materialName;
    }

    public void setMaterialName(String materialName) {
        this.materialName = materialName;
    }

    private DAOFactory factory;

    private FileUploadBean getUploadSessionBean() {
        return (FileUploadBean)getBean("FileUploadBean");
    }

    protected SessionBean1 getSessionBean1() {
        return (SessionBean1) getBean("SessionBean1");
    }

    private PageAlert pageAlert = new PageAlert();

    public PageAlert getPageAlert() {
        return pageAlert;
    }

    public void setPageAlert(PageAlert pageAlert) {
        this.pageAlert = pageAlert;
    }

    

    public String uploadFile() {
        try {
            UploadedFile uploadedFile = getUploadSessionBean().getUploadedFile();
            if (StringUtil.areEmpty(materialName) 
                    || uploadedFile == null
                    || StringUtil.areEmpty(uploadedFile.getOriginalName())) {
                MessagesHelper.processWarnAlert(pageAlert,
                        MessagesHelper.getMessage("empty_params"));
            } else if (factory.getMaterialDAO().checkForExist("name", materialName)) {
                    MessagesHelper.processWarnAlert(pageAlert,
                        MessagesHelper.getMessage("material_exist"));
            } else if (ResourcesHelper.getFileType(uploadedFile.getOriginalName()) 
                    == ResourcesHelper.DocumentType.NOT_SUPPORTED) {
                MessagesHelper.processWarnAlert(pageAlert,
                    MessagesHelper.getMessage("file_type_not_supported"));
            } else {
                String path = uploadFile(uploadedFile);
                saveMaterialEntity(uploadedFile, path);
                MessagesHelper.processInformAlert(pageAlert, 
                MessagesHelper.getMessage("material_uploaded"));
            }   
        } catch (Exception e) {
            MessagesHelper.processErrorAlert(pageAlert,
                        MessagesHelper.getMessage("uploading_error") + e.getLocalizedMessage());
            e.printStackTrace();
        }
        return null;
    }

    private String uploadFile(UploadedFile uploadedFile) throws Exception {
        String name = uploadedFile.getOriginalName();
        String path = getUploadSessionBean().getUserMeterialDir();
        File dir = new File(path);
        dir.mkdirs();
        File file = new File(dir, name);
        uploadedFile.write(file);
        return file.getAbsolutePath();
    }

    private void saveMaterialEntity(UploadedFile uploadedFile, String fullPath) {
        Teacher teacher = (Teacher)getSessionBean1().getCurrentUser();
        Material material = new Material(materialName, teacher, teacher.getSubject(), fullPath);
        IMaterialDAO materialDAO = factory.getMaterialDAO();
        materialDAO.saveOrUpdate(material);
    }
}
